From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AF2E1CAC598 for ; Wed, 17 Sep 2025 10:40:01 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 06FBD8E0011; Wed, 17 Sep 2025 06:40:01 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 047808E0001; Wed, 17 Sep 2025 06:40:01 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E9F0F8E0011; Wed, 17 Sep 2025 06:40:00 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id D8D238E0001 for ; Wed, 17 Sep 2025 06:40:00 -0400 (EDT) Received: from smtpin23.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 667BE59105 for ; Wed, 17 Sep 2025 10:40:00 +0000 (UTC) X-FDA: 83898396960.23.69BFCCA Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) by imf02.hostedemail.com (Postfix) with ESMTP id 3BC8380002 for ; Wed, 17 Sep 2025 10:39:57 +0000 (UTC) Authentication-Results: imf02.hostedemail.com; dkim=pass header.d=suse.de header.s=susede2_rsa header.b=lzKn6rsx; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=m05UphUC; dkim=pass header.d=suse.de header.s=susede2_rsa header.b=lzKn6rsx; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=m05UphUC; dmarc=pass (policy=none) header.from=suse.de; spf=pass (imf02.hostedemail.com: domain of pfalcato@suse.de designates 195.135.223.130 as permitted sender) smtp.mailfrom=pfalcato@suse.de ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1758105598; a=rsa-sha256; cv=none; b=RlaEis/lyxCvLPUcWiLcaj45PioINxjaktXqRdZzMEF/BRiVyasgs/vTw6v7eBGWwxdZgG V3bxqMLtkshmV0XvWscx5/W9byzgqEKouFjbTui3syj62kMu23hLQKsLZv146PApIOhPI4 MHoMt1DJC/ET7LOFvxh3CTR56SdvTZE= ARC-Authentication-Results: i=1; imf02.hostedemail.com; dkim=pass header.d=suse.de header.s=susede2_rsa header.b=lzKn6rsx; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=m05UphUC; dkim=pass header.d=suse.de header.s=susede2_rsa header.b=lzKn6rsx; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=m05UphUC; dmarc=pass (policy=none) header.from=suse.de; spf=pass (imf02.hostedemail.com: domain of pfalcato@suse.de designates 195.135.223.130 as permitted sender) smtp.mailfrom=pfalcato@suse.de ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1758105598; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=BTjTogDxANa0Qzws4WbQ8f3o4nXNMeX98mY4+62yrZI=; b=bY+Ztje+LE7Wjq4/pdVq+nF1WQgIEgX3dvLmGXogMRNSEYZeX5TZtNiw9abCHo/1y9pXvj VrK/D3M/TyK2OeoWwOtrh6CBBmJd6VYfU8bY2p2zXrOMxyoZfuGoQ78pTwEudYNrGCrDI+ aiAvZ2NlIuEyN/CPr8M8KuLjmMOqCrM= Received: from imap1.dmz-prg2.suse.org (unknown [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 579AB222CE; Wed, 17 Sep 2025 10:39:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1758105596; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=BTjTogDxANa0Qzws4WbQ8f3o4nXNMeX98mY4+62yrZI=; b=lzKn6rsx96M01nsIps344q318bjExYm7c47/GA2AJuj+wsJabMjH9h1a7v07SnWn6ll3c5 At4V4a2NRUnyC02g6Ia/cYXNwQbHIw8uwkYxX8QiQeVCE0ljoYNfhHhH7Q0KPG4tMw77HB Khc3IHGBEaPbM2iorjGxiL03pp4nOgM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1758105596; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=BTjTogDxANa0Qzws4WbQ8f3o4nXNMeX98mY4+62yrZI=; b=m05UphUCjG6VcfiTq7HuxEQMpLR8mEO4LF9xom7TIutgiUjjowN6ss0ovAhE8CQtPjS8Ff wBEKg5ywLVyBDwDw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1758105596; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=BTjTogDxANa0Qzws4WbQ8f3o4nXNMeX98mY4+62yrZI=; b=lzKn6rsx96M01nsIps344q318bjExYm7c47/GA2AJuj+wsJabMjH9h1a7v07SnWn6ll3c5 At4V4a2NRUnyC02g6Ia/cYXNwQbHIw8uwkYxX8QiQeVCE0ljoYNfhHhH7Q0KPG4tMw77HB Khc3IHGBEaPbM2iorjGxiL03pp4nOgM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1758105596; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=BTjTogDxANa0Qzws4WbQ8f3o4nXNMeX98mY4+62yrZI=; b=m05UphUCjG6VcfiTq7HuxEQMpLR8mEO4LF9xom7TIutgiUjjowN6ss0ovAhE8CQtPjS8Ff wBEKg5ywLVyBDwDw== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id C98341368D; Wed, 17 Sep 2025 10:39:52 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id He73LfiPymjZOQAAD6G6ig (envelope-from ); Wed, 17 Sep 2025 10:39:52 +0000 Date: Wed, 17 Sep 2025 11:39:43 +0100 From: Pedro Falcato To: Lorenzo Stoakes Cc: Andrew Morton , Jonathan Corbet , Matthew Wilcox , Guo Ren , Thomas Bogendoerfer , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , "David S . Miller" , Andreas Larsson , Arnd Bergmann , Greg Kroah-Hartman , Dan Williams , Vishal Verma , Dave Jiang , Nicolas Pitre , Muchun Song , Oscar Salvador , David Hildenbrand , Konstantin Komarov , Baoquan He , Vivek Goyal , Dave Young , Tony Luck , Reinette Chatre , Dave Martin , James Morse , Alexander Viro , Christian Brauner , Jan Kara , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Hugh Dickins , Baolin Wang , Uladzislau Rezki , Dmitry Vyukov , Andrey Konovalov , Jann Horn , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-csky@vger.kernel.org, linux-mips@vger.kernel.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, nvdimm@lists.linux.dev, linux-cxl@vger.kernel.org, linux-mm@kvack.org, ntfs3@lists.linux.dev, kexec@lists.infradead.org, kasan-dev@googlegroups.com, Jason Gunthorpe , iommu@lists.linux.dev, Kevin Tian , Will Deacon , Robin Murphy Subject: Re: [PATCH v3 03/13] mm: add vma_desc_size(), vma_desc_pages() helpers Message-ID: References: <011a41d86fce1141acb5cc9af2cea3f4e42b5e69.1758031792.git.lorenzo.stoakes@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <011a41d86fce1141acb5cc9af2cea3f4e42b5e69.1758031792.git.lorenzo.stoakes@oracle.com> X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 3BC8380002 X-Stat-Signature: kkdquybyo1atiuw4xbo3mcksjssu31eu X-Rspam-User: X-HE-Tag: 1758105597-760719 X-HE-Meta: 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 qpJiJ3kr fQSza+v/Vec5Z+H9p7SPW5163W6gTq0QIQ3EgeFRpWmH6PPg2I0wKMRzxSKsGsZ1/Dch/84tEnrImJTtIPOZLXAxRIOmY947LcQJQ/kTHbmjczB0xYskS8c2DKnU5wat3MxGq+s4AryYh3wGULRyh8iz6KshFgMy+IThhVbvYwZxFk66SL/vCHTfXGt9kU3xxH2L3s/CQJuNZLizH7HIh2EDXkPxX4LiUxJYnnwmdCbYsqsYjj8nDpNCNktnmwj3UybiJTXa49uRRjrcxDF1a7PfLxAxAc3dLYIij4tdM+2SvS/MCLy0Ao0YTUGJCIOQJ8dvjfRzv2K1SCByHJiyjwzEHQTJ3D7sDtFdzFr/mR/KN3NdS/PV85oa4tknpwQecNtcCRmLXsG3pSHKvJRuE4fSj2TslAvxLcWfrS5KU8YphsFExUi5KRTSoTA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Sep 16, 2025 at 03:11:49PM +0100, Lorenzo Stoakes wrote: > It's useful to be able to determine the size of a VMA descriptor range > used on f_op->mmap_prepare, expressed both in bytes and pages, so add > helpers for both and update code that could make use of it to do so. > > Signed-off-by: Lorenzo Stoakes > Reviewed-by: Jan Kara > Acked-by: David Hildenbrand Reviewed-by: Pedro Falcato -- Pedro